/cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.29/ElectronPhotonFourMomentumCorrection/ElectronPhotonFourMomentumCorrection/GainTool.h

#ifndef ELECTRONPHOTONFOURMOMENTUMCORRECTION_GAINTOOL_H
#define ELECTRONPHOTONFOURMOMENTUMCORRECTION_GAINTOOL_H

#include <string>
#include <memory>
#include <PATCore/PATCoreEnums.h>

class TFile;
class TF1;

namespace egGain {

  class GainTool {
    
  public:
    GainTool(std::string filenameTO, std::string filenameVar);
    void Init(std::string filenameTO, std::string filenameVar);
    virtual ~GainTool();

    double CorrectionGainTool(double eta_input, double energy_input, double energy_layer2_input,
                  PATCore::ParticleType::Type ptype=PATCore::ParticleType::Electron);

  private:
    
    static const int m_NUM_ETA_BINS=28;
    static const int m_NUM_ENERGY_BINS=3;
    static const int m_NUM_UNCONV_ENERGY_BINS=4;

    std::unique_ptr <TFile> m_TOFile;
    std::unique_ptr <TFile> m_varFile;    

    TF1* m_funcTO[m_NUM_ETA_BINS]; 
    TF1* m_funcG[m_NUM_ENERGY_BINS][m_NUM_ETA_BINS];
    TF1* m_conv_funcG[m_NUM_ENERGY_BINS][m_NUM_ETA_BINS]; 
    TF1* m_unconv_funcG[m_NUM_UNCONV_ENERGY_BINS][m_NUM_ETA_BINS]; 
    
  };
  
  
} 
#endif

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